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Keep Your Home’s Water Safe with GEM

Contaminated water can sneak into your home without you even noticing.

Many homeowners assume their taps are safe, but backflow events – where water flows the wrong way through your pipes – can introduce harmful substances into your drinking water. Protecting your family, your plumbing, and your peace of mind starts with understanding the risks and scheduling reliable testing.

GEM Plumbing & Heating Services, LLC, helps homeowners in Rhode Island and Southeast Massachusetts take control of their water safety. Our team guides you through backflow testing, explains what’s happening in your system, and ensures that any problems are addressed quickly and correctly.

Contact GEM today to make sure your water is clean, your home is protected, and your system is code-compliant.

(833) 222-2953


How GEM Protects Your Water and Your Home

Backflow testing may not be on your mind until a problem arises, but waiting can put your family at risk.

GEM’s fully licensed plumbers inspect, test, and report backflow systems to prevent contaminants from entering your water supply. Our process is designed to be thorough, safe, and hassle-free, so you know exactly what’s happening in your home’s plumbing system. Whether you’re a first-time homeowner or you’ve managed your property for years, GEM is the trusted partner who makes the process easy. We handle the details – from permits to testing to reporting – so you can feel confident your water is clean.

(833) 222-2953


Skilled employees

Trucks on the Road

Years in Business

Emergency Service


What Happens During GEM’s Backflow Testing

Backflow testing is more than a quick inspection—it’s a structured process that verifies your system is protecting your home’s water supply.

When GEM performs the service, each step is handled carefully and thoroughly to protect your home and water supply. Here’s what you can expect when we come to your home:

GEM checks all valves and critical points in your plumbing to identify potential backflow risks. We also assess the surrounding components to ensure the entire system is functioning safely.

Our certified backflow testers perform state-approved tests on every backflow preventer. Each step is documented to guarantee your system meets all Rhode Island and Massachusetts regulations.

After testing, GEM provides clear, actionable reports. You’ll receive documentation that you can keep for your records, giving you full confidence in your system’s safety.

If minor issues are detected, GEM addresses them during the visit whenever possible. Prompt fixes prevent contamination and reduce the need for emergency repairs in the future.

GEM plumbers work efficiently and carefully, maintaining safety protocols and minimizing disruption. We clean up thoroughly after each visit, so your home stays safe and orderly.

Once testing is complete, GEM explains the results and outlines any recommended follow-up. You’ll get straightforward options and the support you need to keep your system compliant and protected.

customer and technician interaction

Save Money and Stay Protected with the Home Comfort Club

Detecting issues early can prevent costly repairs and avoid water damage that affects your entire home.

With a Home Comfort Club membership, you stay on top of important system care, including services like backflow testing. Instead of worrying about when inspections are due, the program helps ensure key plumbing components are checked regularly to keep your home’s water supply protected.

As a member, you benefit from scheduled maintenance visits and professional inspections performed by GEM’s experienced technicians. These routine checkups help identify developing issues early and keep your system operating safely while supporting ongoing compliance with local requirements.

Home Comfort Club membership also includes benefits like priority scheduling and exclusive savings on services. With maintenance organized and handled by a trusted team, it becomes easier to protect your home’s water quality and avoid unexpected repair costs.


Backflow Testing from a Team You Can Trust

Homeowners in Rhode Island and Southeast Massachusetts know GEM for dependable, thorough service.

Our combination of experience, community focus, and skilled technicians has earned lasting trust.

We inspect and test backflow systems with complete transparency. Our technicians explain every step and provide clear recommendations without unnecessary upsells.

With decades of experience in the community, GEM understands local plumbing systems, municipal codes, and common issues that homeowners face. That kind of expertise ensures efficient and accurate service.

Life is busy, and waiting for service isn’t an option. GEM offers flexible appointments and online booking so you can protect your home without disruption.

Our team is approachable, professional, and skilled. From the moment we enter your home, you’ll see why GEM is trusted by hundreds of homeowners across New England.

GEM technicians are certified to perform backflow testing in accordance with Rhode Island and Massachusetts state and municipal water safety regulations. Each inspection follows approved testing procedures and includes proper documentation to help homeowners maintain compliance with local regulations.

From testing to reporting and any needed repairs, GEM handles the entire process. Homeowners can count on consistent communication and dependable support every step of the way.

GEM technician smiling inside residential kitchen during service call

(833) 222-2953


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 8459 reviews
Eric and Steven are great! So professional and very nice guys! Love them! I will always request them for everything we need or want done here! Love them! Thank you guys 💙
I called for an estimate and service and got an appointment promptly. Jacob came in and looked at the work needed and gave an estimate on site and was back within 1 week to do the job. Jacob was very courteous and he explained what was needed, in a manner that I could understand. He was very professional. I am very pleased with his work. I will definitely call upon Gem in the future if I need services. Thank you Jacob. Job well done.
Excellent service! The guys who installed were awesome. Very happy customer!
Excellent service
Fast and efficient!
The solve your problem but the price is not the best one.
Mason is very knowledgeable and helpful. He did an awesome job to get our hot water back!
Review for David Salvatore from Gem Plumbing and Heating

I recently had the pleasure of working with David Salvatore from Gem Plumbing and Heating on March 31, 2026, when he performed maintenance on my air conditioning systems. The service he provided was exceptional and very thorough. David demonstrated great professionalism, expertise, and efficiency throughout the process.

My overall experience with David was great, and I would highly recommend his services to anyone in need of HVAC maintenance and repairs. Thank you, David, for your excellent work!
Main water shut off valve needed to be replaced
GEM was fast efficient and extremely courteous
I highly recommend them
Nathan Campbell did a great job !
Great experience. On time, pleasant and performed work efficiently.
Nicole was incredibly knowledgeable, honest, and efficient! I was so thankful that she was able to get here quickly on a Saturday when we had an unknown alarm blaring in our basement. It turned out to be something in our AC unit that was luckily replaceable same day.
I joined the membership. I'm disabled and the membership will help with any future issues.
Very professional and communicative. Really appreciated David's work.
Professional, courteous, knowledgeable to answer all my questions. The work was done in a neat and timely manner
Brody and his associate were outstanding from start to finish. They came in kind, knowledgeable, and got the job done quickly! Exactly what you want! GEM is the real deal. Highly recommend!
Aaron came for a 2nd successful visit. This time to figure out the cause of low/no water pressure in some of our H&C setups for 5 bathroom sinks. He left with 3 sinks H&C flowing freely & demonstrated the need for 2 new faucet installations so Hot H2O could be restored to the remaining sinks. Much appreciated as others had immediately started talking about replacing pipes without investigating less complicated solutions. As before, Aaron was a professional pleasure to have in our home & pricing will be the only holdup for us to continue with the faucet installations. Due to him, I have high hopes for the GEM electrician arriving next week & the HVAC maintenance later this month.
Joseph H did a great job for us . After hours
He fixed our boiler so quick he was polite & very efficient . Thankful for him
The folks at Carmine's always do a great job👍 Tim is a great plumber, explains things, and provides options.
Very professional service. They came the same day and solved the problem quickly and completely. I would definitely use Gem again if I needed plumbing work.
I called GEM because I wanted my ductless AC’s checked to see if they needed any service. Christopher Cennamo came and examined both units and said they were functioning properly but needed a cleaning to remove mold and dirt. The large unit is at the top of a stairwell so access requires a tall ladder. Christopher made the appointment to return to do the cleaning and also to determine why the larger unit was tilting off the wall. He returned today and determined that the larger unit’s mounting bracket was only attached to drywall and not a wooden stud. He and Brody Lott secured the mounting bracket to a stud, ensuring the unit is now securely on the wall. A thorough cleaning of both units was completed including removal of a mouse nest. Christopher told me how to use steel wool in the outside pipe cover to prevent mice from entering which I promptly did. Christopher Cennamo was very professional, thorough, knowledgeable and explained everything. The cleaning was expensive but worth it. Plus he didn’t charge extra to repair the faulty mounting issue because GEM had done the initial install and not done it properly. I highly recommend Christopher Cennamo for any of your heating and cooling jobs.
Took some time to get here but, The awesome technicians, were friendly and work hard to minimize costs and make sure the customer is satisfied. Surely a company you can count on.
Excellent service
Paul was knowledgeable, very friendly and described the repair process, in detail, to my satisfaction
Technicians did a fantastic job, neat, quick and clean
Overpriced for a 90 minute job


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(833) 222-2953

Why Schedule Backflow Testing with GEM?

Working with a trusted provider ensures your backflow system is tested correctly and your home’s water supply remains protected.

When you schedule testing with GEM, you benefit from experienced technicians, certified procedures, and clear documentation that keeps your system compliant.

Backflow inspections confirm that contaminants cannot enter your home’s water supply. This added safeguard helps keep the water from your taps safe for your family and pets.

Identifying developing problems early can stop plumbing emergencies before they cause extensive damage. Addressing concerns proactively saves money and reduces the chance of major disruptions in your home.

Backflow must meet local and state regulations. GEM manages the required documentation and reporting so the compliance process is simple and stress-free.

Routine service from GEM keeps your plumbing system monitored year after year. Ongoing maintenance supports reliable performance and helps protect the life of your pipes.

Inspections can uncover internal wear or pressure irregularities that may not be visible from the outside. Discovering these concerns in time reduces the likelihood of sudden failures and costly repairs.


Complete Backflow Services from GEM

GEM provides a full range of backflow solutions throughout Rhode Island and Southeast Massachusetts to keep your home or business safe and code-compliant.

From installation to emergency repairs, our team makes sure every system functions properly so you can have peace of mind about your water quality.

GEM installs new backflow prevention devices to help protect your water supply from potential contamination. Each system is properly sized, installed to meet code requirements, and thoroughly tested to ensure reliable performance.

Issues discovered during testing may involve worn valves or malfunctioning components that require repair. GEM technicians address these problems using proven methods that restore proper operation and help keep your water supply protected.

When a backflow preventer is beyond repair, GEM provides replacement options that restore full protection. We remove old equipment and install new devices quickly and efficiently, minimizing downtime.

Keep your business water systems compliant and safe with GEM’s commercial solutions. From inspections to repairs and maintenance, we handle everything so you can focus on running your business.

If a backflow device fails unexpectedly, GEM offers responsive emergency service. Our team arrives prepared to assess, repair, or replace devices quickly to protect your home or business.

GEM Plumbing Heating Cooling u0026amp; Electrical branded technician portrait

(833) 222-2953

GEM technician in front of service truck

Schedule Your Backflow Testing with GEM

Protect your home and family today by scheduling a backflow test with GEM.

You can count on our experienced team for all of your plumbing needs, from routine maintenance to complex repairs, ensuring your water supply stays safe and your system runs smoothly. With GEM, you’ll have a trusted partner who handles everything with professionalism, care, and attention to detail.

Call GEM at (833) 222-2953 today. 


Frequently Asked Questions About Backflow Testing

What is backflow, and why is it dangerous?

Backflow happens when water reverses direction in a plumbing system. This reversal can allow contaminants such as chemicals, bacteria, or debris to enter the clean water supply. Proper prevention and testing help keep household drinking water safe.

Can minor issues be fixed during backflow testing?

Small problems, such as worn components or minor valve issues, can often be addressed during the same visit. Handling these concerns right away helps keep the system operating correctly. Early fixes also reduce the likelihood of larger repairs later.

What happens if my backflow system fails inspection?

If a system does not pass inspection, GEM technicians explain the issue and outline the steps needed to correct it. Recommended repairs or adjustments help bring the system back into compliance with local requirements. Once the issue is resolved, we can perform a follow-up test to confirm the system is operating properly.

How long does a backflow test usually take?

Many backflow inspections take less than an hour to complete. The exact timing depends on the size and accessibility of the system being tested. GEM technicians perform each step carefully to ensure accurate results.

How often should backflow testing be performed?

Backflow prevention systems are typically tested once per year. Annual inspections help confirm the device is working properly and meeting local safety requirements. Regular testing also helps identify wear or performance issues before they become larger problems.